No worries at all...
I haven't used boiling water, but I have used very hot tap water... maybe I need to use some boiled water ? I also am supposed to order a peppermint off the clean-up crew order, but I am not sure what's happening there.
Also, one reason why I wanted a nudi was because I have an aptasia growing in the middle of a zoo colony

Great spot....
Some are also getting quite large... and I highly doubt a peppermint will eat them.